LUBRICATING COMPOSITION
    1.
    发明申请
    LUBRICATING COMPOSITION 审中-公开
    润滑组合物

    公开(公告)号:US20160024418A1

    公开(公告)日:2016-01-28

    申请号:US14772082

    申请日:2014-03-04

    申请人: SHELL OIL COMPANY

    IPC分类号: C10M145/14

    摘要: The present invention provides a lubricating composition comprising: (i) a base oil; (ii) a non-silicone anti-foam agent; and (iii) one or more performance additives; wherein the composition has a kinematic viscosity at 100° C. (according to ASTM D445) of 16.3 mm2/s or less, a low temperature cranking viscosity of at most 6600 cP at −30° C. (ASTM D5293) and a NOACK volatility of at most 11% according to CEC-L-40-93.

    摘要翻译: 本发明提供一种润滑组合物,其包含:(i)基础油; (ii)非硅氧烷消泡剂; 和(iii)一种或多种性能添加剂; 其中所述组合物在100℃(根据ASTM D445)具有16.3mm 2 / s或更小的运动粘度,在-30℃下最低6600cP的低温起动粘度(ASTM D5293)和NOACK挥发度 根据CEC-L-40-93,最多为11%。

    Polymerization process
    2.
    发明授权

    公开(公告)号:US06667373B2

    公开(公告)日:2003-12-23

    申请号:US10118811

    申请日:2002-04-08

    IPC分类号: C08F202

    摘要: A staged method of forming vinyl (e.g. acrylate) copolymer by solution polymerization which involves a) charging up to 90% of at least two vinyl monomers of the vinyl copolymer to a first stage reaction zone, b) polymerizing the at least two vinyl monomers to about 10 to 90% conversion in the presence of an initiator at an initiator to monomers mole ratio within a specified range, the monomer content of one of the at least two vinyl monomers of the copolymer formed in the first stage being higher than the content of another of the at least two vinyl monomers in the first stage polymer, the weight average molecular weight of the first stage copolymer being about 2000 to 500,000 Daltons; and c) continuing polymerization in the presence of an initiator in a second stage while continuously adding the balance of the monomers of said vinyl copolymer to the polymerization reaction mixture of the first stage at a monomers ratio lower in the one monomer than in the first stage monomers ratio, the initiator to monomers mole ratio in the second stage being different than in the first stage; the vinyl copolymer formed gradually continuously changing in molecular weight from the first stage and increasing in concentration of the one monomer during the second stage, the weight average molecular weight of the total copolymer of both stages being about 2,000 to 250,000 Daltons.

    Defoamers for aqueous media
    4.
    发明授权
    Defoamers for aqueous media 有权
    含水介质的消泡剂

    公开(公告)号:US06420324B1

    公开(公告)日:2002-07-16

    申请号:US09548513

    申请日:2000-04-13

    IPC分类号: C10M10556

    摘要: The invention relates to compositions for defoaming aqueous media, comprising as defoamers urea derivatives of the formula I where R1 is a hydrocarbon radical, preferably having 4 to 30 carbon atoms or a hydrocarbon radical, preferably having 4 to 24 carbon atoms and one nitrogen atom or a hydrocarbon radical, preferably having 4 to 30 carbon atoms and one carbonyl group, R2 is a hydrogen atom or a hydrocarbon radical, preferably having 1 to 24 carbon atoms, R3 is a hydrogen atom or a hydrocarbon radical, preferably having 1 to 24 carbon atoms, R4 is an organic radical, preferably having 2 to 30 carbon atoms, and n is from 0 to 5; in the form of solid particles, which are obtained by crystallization from a clear homogeneous melt dispersed in a carrier medium, and a process of preparation thereof.

    摘要翻译: 本发明涉及用于消泡含水介质的组合物,其包含消泡剂式I的脲衍生物,其中R 1是优选具有4至30个碳原子的烃基或优选具有4至24个碳原子的烃基和1个氮原子或烃 优选具有4至30个碳原子和一个羰基,R 2是氢原子或烃基,优选具有1至24个碳原子,R 3是氢原子或烃基,优选具有1至24个碳原子, R4是有机基团,优选具有2至30个碳原子,并且n为0至5; 其为通过从分散在载体介质中的透明均匀熔体结晶获得的固体颗粒的形式及其制备方法。